class IntelligentServices:
    def __init__(self):
        pass

    def train_recommendation(self):
        """基于历史数据推荐备选方案"""
        pass

    def route_planning(self):
        """智能拼接联程车次"""
        pass

    def wechat_notification(self):
        """通过API发送抢票结果"""
        pass

    def voice_broadcast(self):
        """重要状态变更语音提示"""
        pass